Snow glide board and shell element for a snow glide board

ABSTRACT

In a snow glide board, in particular a ski with a glide board body, the outer surface of which is formed at least on one top side opposing the gliding or running surface by a shell of at least one layer made of a flat material and the glide board body of which comprises at least one channel extending in the longitudinal direction of the glide board body for holding at least one trim rod, the shell is made of a shell element on which at least one hollow or tubular section forming a channel for at least one trim rod is formed or pre-mounted.

BACKGROUND OF THE INVENTION

The invention relates to a snow glide board, in particular to a ski,with a glide board body, the outer surface of which is formed at leaston one top side opposing the gliding or running surface by a cap orshell of at least one layer made of a flat material and in which atleast one channel extending in the longitudinal direction of the glideboard body is provided for holding at least one trim rod.

The invention further relates to a shell element with a shell formed byat least one layer of a flat material for manufacturing a snow glideboard, in particular a ski, with at least one channel formed in a glideboard body and extending in the longitudinal direction of the glideboard body for holding at least one trim rod.

Many various types of snow glide boards are known in the art. A designhas also been proposed in which two recesses or channels extending inthe longitudinal direction of the snow glide board are provided in thesnow glide board body of a downhill ski, each recess for holding areplaceable trim rod, with which the mechanical, and in particular alsothe dynamic properties of the respective ski can be adapted to thepreferences or requirements of the user. Depending on the material used,it is possible to adapt the flexural strength, the damping behavior,etc. of the snow glide board. The channels for holding the trim rodsextend over a majority of the length of the glide board body, extendingfrom the front section (blade area) of the glide board body to the backend of the glide board body. However, such snow glide boards are notsuitable for economical mass production.

It is an object of the invention is to develop a snow glide board of thebefore mentioned type so that it is suitable for economical massproduction.

SUMMARY OF THE INVENTION

An object is achieved by a snow glide board, in particular a ski with aglide board body, the outer surface of which is formed at least on onetop side opposing the gliding or running surface by a cap or shellformed by at least one layer of a flat material and in which at leastone channel extending in the longitudinal direction of the glide boardbody is provided for holding at least one trim rod, wherein the cap orshell is formed by a pre-fabricated cap element or shell element, onwhich at least one hollow section forming the at least one channel isformed or pre-mounted on one inner side of the shell.

This object is also achieved by a shell element for snow glide boards,the shell element comprising a shell of at least one layer made of aflat material for manufacturing a snow glide board, in particular a ski,with at least one channel formed in a glide board body and extending inthe longitudinal direction of the glide board body for holding at leastone trim rod, wherein the shell element is prepared on one inner side ofthe shell with at least one hollow section forming the at least onechannel.

A special feature of the invention consists in the fact that for themanufacture of the snow glide board a shell element is used consistingof the shell forming the top side of the snow glide board body,preferably also at least partially the longitudinal sides of said glideboard, and of at least one prepared hollow or tubular section on theinside of the shell, said section forming the at least one channel forholding at least one trim rod. In the manufacture of the snow glideboard, this prepared shell element with the at least one hollow ortubular section is inserted with the other components or elements of thesnow glide board body into the mold tool used for manufacturing and isbonded to the glide board body, for example by means of pressing with asynthetic material.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described below based on exemplary embodiments withreference to the drawings, in which:

FIG. 1 shows a cross section of a ski according to the invention;

FIG. 2 shows in a component drawing a cross section of the shell of theski in FIG. 1;

FIG. 3 shows a fragmentary longitudinal cross section of the ski in FIG.1 in the area of one support or damping element; and

FIGS. 4 and 5 show further possible embodiments in representationssimilar to FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

The ski generally designated 1 in FIGS. 1-3 features—with the exceptionof the special characteristics described in the following—the usualstructure, i.e. it consists of a lower running surface element 3 withthe two steel edges 4 and with the running surface coating 5 forming therunning surface or bottom of the ski body 2, of the core 6 made of acore material (e.g. synthetic foam and/or wood) that is suitable forsnow glide boards or skis, of the cap or shell 7 forming the top of theski body 2 and also the side surfaces of said ski body, and of an upperand lower belt-like support layer 8 and 9, made of a suitable materialfor such support layers or belts, e.g. metal (for example Titanal)and/or fiber-reinforced plastic and extending over the entire length ofthe ski body.

The ski 1 is designed as a so-called 3-D ski, i.e. the ski body 2 isprovided on its top side formed by the shell 7 with two bead-shapedprotrusions 10, which extend over a majority of the length of the skibody, in particular also over the middle area or binding area of the skibody 2, on which (binding area) the binding or the elements of thebinding are fastened. The protrusions 10, each of which extend along onelongitudinal side of the ski body 2, are tapered in the areas of thefront and rear end of the ski body, i.e. they form tapered ends 10.1there, as shown in FIG. 3. Between the two protrusions 10, the ski body2 features a trough-shaped recess 11 on its top side.

In the area of each protrusion 10 a channel 12 is formed in the core 6and beneath the shell 7, which (channel) likewise extends along therespective longitudinal side of the ski body 2, as does thecorresponding protrusion 10. In the depicted embodiment each channel 12is open at both ends, namely at the tapered end 10.1 of the respectiveprotrusion 10. Each channel 12 is formed by the interior of a plastictubular section 13, which is embedded in the core 6, namely for exampleby foaming, for example with a plastic foam (e.g. PUR foam) at leastpartially forming the core 6 or by bonding it in the core 6 with asynthetic resin used in the manufacture of the ski body 2.

The tubular section 13 in this embodiment is inserted on the respectivetapered end 10.1 of the corresponding protrusion 10 with the respectiveend 13.1 outward through the shell 7, so that the end 13.1 of thetubular section protruding from the shell 7 there forms the channelopening 12.1 of the channel 12.

An exchangeable trim rod 14 is held in the channel 12 with an outerdiameter that is equal to or less than the inner diameter of the channel12, so that said trim rod 14 can move axially relative to the tubularsection 13 with a certain amount of play. The trim rod 14 in thedepicted embodiment consists of a fiber-reinforced plastic, for exampleof fiberglass-reinforced plastic or carbon-reinforced plastic, thusmaking it elastically deformable. The length of the trim rod 14 is suchthat, after being inserted into the channel 12, its ends 14.1 protrudefrom the channel openings 12.1, as shown for one end 14.1 in FIG. 3.

The trim rod 14 is supported with each end 14.1 on a bearing or supportelement 15, which is fastened in a suitable manner on the top of the skibody 2 opposite the respective channel opening 12.1. At least thesupport element 15 for the one end 14.1 of each trim rod 14 is providedon the ski body such that, for example after removing or pivoting thissupport element 15, it is possible to insert/remove the trim rods 14into/from the channel 12, respectively.

The trim rods 14 can be used for example to influence the flexing orflexural strength of the ski body 2 during flexing, i.e. to adapt theflexural strength to the preferences and requirements of the individualuser, namely through the use of trim rods 14 with differing flexuralstrength, which can be achieved through the respective choice ofmaterial and/or through a respective diameter for the trim rods 14. Inorder to compensate for the differences in length caused by thediffering radius of bend during flexing of the ski body 2, the bearingor support surfaces for the ends 14.1 formed by the support elements 15are elastic or resilient, i.e. in the depicted embodiment these supportsurfaces are formed by an insert 16 made of a permanently elasticsynthetic material. The corresponding choice of material also achieves adamping effect. A further damping effect can be achieved by encasing therespective trim rod with an elastic, damping material.

The shell 7 is made of a single-layer, but preferably of a multi-layerflat synthetic material. In the multi-layer embodiment the shell 7 ismade of an outer synthetic layer (e.g. surface or decorative foil)forming the outer surface of the ski body 2 and of an inner supportinglayer, e.g. of a fiber-reinforced plastic. As FIG. 2 shows, the shell 7is pre-fabricated as a 3-D shell with two sections 7.1 forming the sidesof the shell 7 and of the glide board body 2, with two groove-shapedsections 7.2 on the inside of the shell forming the later protrusions 10and with one middle section 7.3 forming the recess 11 of the glide boardbody 2. The shell 7 is furthermore a part of a cap element or a shellelement 7 a, namely together with the reinforcing element or belt 8provided on section 7.3 on the inside of the shell 7. A special featureof the invention is the fact that the shell element 7 a ispre-fabricated with the tubular section 13, i.e. one tubular section 13is held in each groove-shaped section 7.2, fastened there in a suitablemanner and inserted with its ends 13.1 through openings in the shell 7at the ends of the respective groove-shaped section 7.2. The tubularsections 13 are held on the inside of the shell 7 for example byadhesive bonding with a suitable synthetic material.

In the depicted embodiment, the support elements 15 are also prepared onthe shell 7 or on the shell element 7 a and are inserted through theshell 7 with an anchoring section 15.1 and protrude with this sectionover the inside of the shell 7. The anchoring sections 15.1 are used toanchor the support elements 15 in the core 6 by packing them in foam orin another manner, for example by adhesive bonding with synthetic resin.

The prepared shell element 7 a with the tubular sections 13 and theupper support element or belt 8 is then inserted together with theremaining elements forming the ski body 2 into the device or mold usedfor the manufacture of the ski body 2. To prevent the penetration inparticular of synthetic material or synthetic resin in the channels 12formed by the tubular sections 13 during the manufacture or pressing ofthe ski body 2, the tubular sections 13 are closed on both ends, namelysuch that they can be opened with a suitable tool or by simplypuncturing them. The corresponding closure is formed for example by amembrane or by a removable plug.

It was assumed in the above description that each of the trim rods 14 issupported on both ends by a support element 15. Fundamentally, it isalso possible to mount the trim rod 14 at only one end on a holding orbearing element fastened to the ski body 2.

It was also assumed in the above description that each of the trim rods14 is inserted through the channel 12 on both ends. Other designs arealso possible. For example, it is possible to close each channel 12 oreach tubular section 13 on one end. This closed end of the respectivetubular section, preferably not inserted through the shell 7, then formsfor example a support bearing for one end 14.1 of the respective trimrod 14, or the trim rod 14 mounted on its other end is held in thechannel 12 at a distance from the closed end.

FIG. 4 shows, as a further embodiment of the invention, a simplifiedfragmentary view of a ski 1 a, in which the channels 12 formed by thetubular sections 13 are each closed on one end in the manner describedabove and for this purpose are designed or provided with an end piece17. The end pieces 17, which for example are manufactured as molded orinjection molded parts from plastic, are adapted to the inner shape ofthe groove-shaped section 7.2 at the tapered end 10.1 of the protrusions10 and held by suitable means, for example by adhesive bonding, to theinside surface of the shell 7, which is closed at least in this area.

FIG. 5 shows, as a further embodiment, a fragmentary view of a ski 1 b,in which the tubular sections 13 are designed or provided with an endpiece 18 on at least one end. The end pieces 18, which again are forexample molded or injection molded plastic parts, form with theiropenings 18.1 in this embodiment the channel openings 12 and arefastened on the inside surface of the shell 7 on the section 7.2 forexample by adhesive bonding or welding, namely in the area of thetapered end 10.1. The respective end piece 18 is also fastened inparticular so that the respective opening 18.1 of each end piece 18forming the channel opening 12.1 is tightly closed by the shell 7, thuspreventing the penetration of foreign material, in particular alsosynthetic material, into the channel 12 during manufacture of the ski 1b. The shell 7 is not opened in the area of the channel opening 12.1until after manufacture of the ski 1 b, for example with a suitable tooland/or by providing the shell 7 there with an easily removable area,e.g. by means of perforation and/or reduced material thickness of theshell 7, etc. After opening the respective channel 12, the trim rod 14can be inserted into said channel through the channel opening 12.1. Ifno trim rod is needed, for example, then the shell 7 remains closed inthe area of the end pieces 18.

The invention was described above based on various exemplaryembodiments. It goes without saying that numerous modifications arepossible, without abandoning the underlying inventive idea upon whichthe invention is based. For example, the trim rods 14 can be designedwith different characteristics than those described above, also withrespect to their mechanical properties, for example so that the trimrods are made over their entire length or a partial length of a dampingmaterial that is deformable during flexing of the respective ski, e.g. aflexible material.

Furthermore, it is possible to design the end pieces that are used, forexample the end piece 18, so that the end piece simultaneously forms thesupport element or bearing element for the respective trim rod.

Furthermore, it is possible for each trim rod to consist of a bundle ofsingle rods with the same or differing mechanical properties. Allembodiments have in common that, for the manufacture of the ski, a shellelement 7 a is used, on the shell 7 of which at least one channel isalready prepared for holding at least one trim rod, thus ensuring theeconomical manufacture of the respective ski or snow glide board.

Reference List

-   1, 1 a, 1 b ski-   2 ski body-   3 running surface component-   4 steel edge-   5 running surface-   6 core-   7 shell-   7.1, 7.2, 7.3 section of shell 7-   8, 9 support layer or belt-   10 protrusion-   10.1 tapering end of protrusion 10-   11 trough-shaped recess-   12 channel-   12.1 channel opening-   13 tubular section-   13.1 end of tubular section 13-   14 trim rod-   14.1 end of trim rod-   15 support element-   16 insert-   17, 18 end piece-   18.1 opening of end piece 18

1. A snow glide board, in particular a ski with a glide board body, theouter surface of which is formed at least on one top side opposing thegliding or running surface by a cap or shell of at least one layer madeof a flat material and in which at least one channel extending in thelongitudinal direction of the glide board body is provided for holdingat least one trim rod, wherein the shell is formed by a pre-fabricatedshell element, on which at least one hollow section forming the at leastone channel is formed or pre-mounted on one inner side of the shell. 2.The snow glide board as claimed in claim 1, wherein the shell elementcomprises a 3-D shell with at least one groove-shaped shell section onone inner side of the shell and extending in the longitudinal directionof the shell, and that the at least one hollow section is formed orpre-mounted on said groove-shaped shell section.
 3. The snow glide boardas claimed in claim 1, wherein the at least one hollow section is formedby a length of a tubular section connected with the inside of the shell.4. The snow glide board as claimed in claim 1, wherein the at least onehollow or tubular section is made of plastic.
 5. The snow glide board asclaimed in claim 1, wherein the at least one channel forms, on at leastone end, a channel opening for insertion and/or removal of the at leastone trim rod.
 6. The snow glide board as claimed in claim 1, wherein thehollow or tubular section is inserted through the shell at least on oneend of the channel.
 7. The snow glide board as claimed in claim 5,wherein the at least one channel opening is closed by the shell untilcompletion of the snow glide board, and that the at least one channelcan be opened at the at least one channel opening after completion ofthe snow glide board.
 8. The snow glide board as claimed in claim 1,further comprising at least one support or bearing element on the glideboard body for the at least one trim rod.
 9. The snow glide board asclaimed in claim 8, wherein the support or bearing element is outside ofthe at least one channel.
 10. The snow glide board as claimed in claim8, wherein the support or bearing element is opposite the channelopening.
 11. The snow glide board as claimed claim 8, wherein the atleast one support or bearing element is formed in the at least onechannel.
 12. The snow glide board as claimed in claim 1, wherein the atleast one channel extends over a majority of the length of the snowglide board.
 13. The snow glide board as claimed in claim 1, wherein theat least one trim rod is exchangeable.
 14. A shell element with a shellof at least one layer made of a flat material for manufacturing a snowglide board, in particular a ski, with at least one channel formed in aglide board body and extending in the longitudinal direction of theglide board body for holding at least one trim rod, wherein the shellelement is prepared on one inner side of the shell with at least onehollow section forming the at least one channel.
 15. The shell elementas claimed in claim 14, further comprising a 3-D shell with at least onegroove-shaped shell section on one inner side of the shell and extendingin the longitudinal direction of the shell, and that the at least onehollow section is formed or pre-mounted on said groove-shaped shellsection.
 16. The shell element as claimed in claim 14, wherein the atleast one hollow section is formed by a length of a tubular sectionconnected with the inside of the shell.
 17. The shell element as claimedin claim 14, wherein the at least one hollow or tubular section is madeof plastic.
 18. The shell element as claimed in claim 14, wherein the atleast one channel forms, on at least one end, a channel opening forinsertion and/or removal of the at least one trim rod.
 19. The shellelement as claimed in claim 14, wherein the hollow or tubular section isinserted through the shell at least on one end of the channel.
 20. Theshell element as claimed in claim 14, wherein the at least one channelopening is closed by the shell and can be opened after completion of thesnow glide board.
 21. The shell element as claimed in claim 14, furthercomprising at least one support or bearing element on the shell elementfor the at least one trim rod.
 22. The shell element as claimed in claim21, wherein the support or bearing element on the shell element isprovided outside of the at least one channel.
 23. The shell element asclaimed in claim 21, wherein the support or bearing element providedopposite the channel opening.
 24. The shell element as claimed in claim21, wherein the at least one support or bearing element is formed in theat least one channel.
 25. The shell element as claimed in claim 14,wherein the at least one channel extends over a majority of the lengthof the shell element.